Sheet mask



FIG. 1 is a front view of a first embodiment of the sheet mask showing my design;

FIG. 2 is a rear view thereof;

FIG. 3 is a side view thereof, with the other side being a mirror image thereof;

FIG. 4 is a perspective view thereof being used on an abdominal area of a user;

FIG. 5 is front view of a second embodiment of the sheet mask showing my design;

FIG. 6 is a rear view thereof;

FIG. 7 is a side view thereof, with the other side being a mirror image thereof; and,

FIG. 8 is a perspective view thereof being used on an abdominal area of a user.

In FIGS. 1-8, features shown in broken lines having a lighter weight, including a circular cutout, a rear mesh backing attached to the mask form no part of the claimed design. In FIGS. 1-8, dashed lines with a heavier weight represent perforation lines formed in the sheet mask, which are part of the claimed design of FIGS. 1-8. 

CLAIM The ornamental design for a sheet mask, as shown and described. 